CN101651079A - Dual-laser-beam welded tungsten-molybdenum-niobium electrode of ceramic metal halide lamp - Google Patents
Dual-laser-beam welded tungsten-molybdenum-niobium electrode of ceramic metal halide lamp Download PDFInfo
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- CN101651079A CN101651079A CN200810041783A CN200810041783A CN101651079A CN 101651079 A CN101651079 A CN 101651079A CN 200810041783 A CN200810041783 A CN 200810041783A CN 200810041783 A CN200810041783 A CN 200810041783A CN 101651079 A CN101651079 A CN 101651079A
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Abstract
The invention relates to a dual-laser-beam welded tungsten-molybdenum-niobium electrode of a ceramic metal halide lamp, which comprises a tungsten rod, a molybdenum rod and a niobium rod, wherein oneend of the tungsten rod is wound with tungsten helixes; the molybdenum rod is wound with molybdenum helixes; and two laser beams are adopted to weld the tungsten rod, the molybdenum rod and the niobium rod into a whole body directly so as to form a discharge electrode of the ceramic metal halide lamp. Compared with the prior art, the dual-laser-beam welded tungsten-molybdenum-niobium electrode ofthe ceramic metal halide lamp has the characteristics of improving the product collimation, increasing the strength of the electrode, simplifying the production process, replacing imported components,reducing the manufacturing cost of bulb products for users, and the like.
Description
Technical field
The present invention relates to lighting electric light source, be specifically related to a kind of tungsten-molybdenum-niobium electrode of ceramic gold-halogen lamp of double laser beam welding.
Background technology
Data shows that the sparking electrode that known ceramic gold-halogen lamp product uses has two types: a class is the tungsten niobium electrode assembly, promptly at the two ends of tungsten bar respectively around molybdenum spiral and tungsten spiral, will form sparking electrode with niobium bar coaxial welding around the tungsten bar of molybdenum spiral end then; Another kind of is the tungsten-molybdenum-niobium electrode assembly, and such sparking electrode is divided into two kinds of structures basically again: a kind of structure be tungsten bar one end around tungsten spiral, on molybdenum rod around the molybdenum spiral, in the middle of molybdenum rod puts, make electrode with tungsten bar, niobium bar coaxial welding respectively; Another kind of structure be earlier an end of tungsten bar around tungsten spiral, on molybdenum rod around the molybdenum spiral, after tungsten bar and the molybdenum rod welding, molybdenum rod is inserted in niobium pipe or the niobium pin again and makes electrode.Two types electrode assemblie relatively, tungsten niobium electrode assembly be in axiality, the fastness of product, materials and technology, cost aspect tool remarkable advantages.
At present, domestic have many enterprises to introduce the ceramic gold-halogen lamp product line from the U.S., Korea S, Japan etc., owing to be subjected to the restriction of equipment and lamp manufacturing process, to introduce line except that part and can use homemade tungsten niobium electrode assembly, most introduction lines still need use the tungsten-molybdenum-niobium electrode assembly of import.
Summary of the invention
Purpose of the present invention is exactly the tungsten-molybdenum-niobium electrode of ceramic gold-halogen lamp of the double laser beam that fastness is strong, cost the is low welding of collimation height that a kind of product is provided in order to overcome the defective that above-mentioned prior art exists, electrode.
Purpose of the present invention can be achieved through the following technical solutions: a kind of tungsten-molybdenum-niobium electrode of ceramic gold-halogen lamp of double laser beam welding, comprise tungsten bar, molybdenum rod, niobium bar, it is characterized in that, described tungsten bar one end is around last tungsten spiral, coiling molybdenum spiral on the molybdenum rod, it is as a whole to adopt double laser beam directly tungsten bar, molybdenum rod and niobium bar to be welded into, and forms the sparking electrode of ceramic metal helide lamp.
Described electrode and earthenware are assembled into ceramic gold-halogen lamp.
The size of described electrode and the size of earthenware be according to different lamp power designs, the ceramic tubule internal diameter fit-up gap at the external diameter of molybdenum spiral and ceramic gold-halogen lamp two ends coupling on the electrode.
Described fit-up gap is 0.03mm～0.07mm.
Described tungsten bar, molybdenum rod and niobium bar adopt the direct butt welding of double laser beam to be assembled into electrode assemblie.
The node size and the shape need that weld on the described electrode assemblie reach may command, with the node size guaranteeing to weld and shape in the scope that standard allows, thereby the interstice coverage 0mm～2mm that guarantees the node that molybdenum filament spiral and molybdenum niobium weld is controlled.
Compared with prior art, advantage of the present invention is to improve the collimation of product, increases the intensity of electrode, simplifies production technology, substituting import one assembly, the manufacturing cost of reduction user's bulb product.
Description of drawings
Fig. 1 is the structural representation of ceramic gold-halogen lamp tungsten niobium electrode of the present invention;
Fig. 2 is the cross-sectional view of arc tube for ceramic metal halide lamp of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment
A kind of tungsten-molybdenum-niobium electrode of ceramic gold-halogen lamp of double laser beam welding, comprise tungsten bar 8, molybdenum rod 6, niobium bar 5, described tungsten bar 8 one ends are around last tungsten spiral 9, coiling molybdenum spiral 7 on the molybdenum rod 6, it is as a whole to adopt double laser beam directly tungsten bar 8, molybdenum rod 6 and niobium bar 5 to be welded into, and forms the sparking electrode of ceramic metal helide lamp.
Electrode of the present invention is fit to the electric arc tube of the ceramic gold-halogen lamp series of 20W～150W, and this electric arc tube is the in succession earthenwares of tubule of two ends, and the big I of the size of electrode and earthenware designs according to different lamp power.
Table 1 is the matched data tabulation of ceramic gold-halogen lamp tungsten niobium electrode of the present invention and electric arc tube.
Table 1 (mm)
Shown in Fig. 2 and table 1, a kind of cross-sectional view of arc tube for ceramic metal halide lamp, ceramic gold-halogen lamp comprise sparking electrode 1, ceramic cell-shell 2, ceramic cell-shell two ends tubule 3, niobium bar 4, niobium bar 5, molybdenum rod 6, molybdenum filament spiral 7, tungsten bar 8, tungsten filament helix 9, glass ring 11.The size of electrode and the size of earthenware should design according to different lamp power, but should guarantee the coupling of the ceramic tubule internal diameter fit-up gap at the external diameter of tungsten on the electrode, molybdenum taenidium and ceramic gold-halogen lamp two ends, improve the sealing by fusing reliability of glass ring 11; The external diameter of the tungsten filament helix of making 9 should≤internal diameter of ceramic tubule 3, the internal diameter clearance control of the ceramic tubule 3 at the external diameter of molybdenum filament spiral 7 and two ends is at 0.03mm～0.07mm.
In order to overcome the collimation and the strength problem of tungsten, molybdenum and niobium electrode welding, it is as a whole to adopt double laser beam directly tungsten bar, molybdenum rod and niobium bar to be welded into, and forms the sparking electrode (see figure 1) of ceramic metal helide lamp.Regulate the waveform of laser output weld pulse power, suitably be controlled in certain scope, can guarantee size and the consistency of shape and the axiality of assembly of the node 10 that welds, thereby guarantee that node 10 to the gap of molybdenum spiral 7 after molybdenum rod 6 and 5 welding of niobium bar can be controlled in 0mm～2mm scope.
The present invention adopts the sparking electrode of a kind of tungsten bar, molybdenum rod, the direct butt welding of niobium bar to come the substituting import one electrode assemblie, is wise feasible with the production cost that reduces domestic ceramic metal helide lamp system lamp enterprise; Authenticated and sample batches, tungsten-molybdenum-niobium electrode assembly be the bulb manufacturing company of scale outlet U.S. maximum at present.
Claims (6)
1. the tungsten-molybdenum-niobium electrode of the ceramic gold-halogen lamp of double laser beam welding, comprise tungsten bar, molybdenum rod, niobium bar, it is characterized in that, described tungsten bar one end is around last tungsten spiral, coiling molybdenum spiral on the molybdenum rod, it is as a whole to adopt double laser beam directly tungsten bar, molybdenum rod and niobium bar to be welded into, and forms the sparking electrode of ceramic metal helide lamp.
2. the tungsten-molybdenum-niobium electrode of the ceramic gold-halogen lamp of a kind of double laser beam welding according to claim 1 is characterized in that described electrode and earthenware are assembled into ceramic gold-halogen lamp.
3. the tungsten-molybdenum-niobium electrode of the ceramic gold-halogen lamp of a kind of double laser beam welding according to claim 1, it is characterized in that, the size of described electrode and the size of earthenware be according to different lamp power designs, the ceramic tubule internal diameter fit-up gap at the external diameter of molybdenum spiral and ceramic gold-halogen lamp two ends coupling on the electrode.
4. the tungsten-molybdenum-niobium electrode of the ceramic gold-halogen lamp of a kind of double laser beam welding according to claim 3 is characterized in that described fit-up gap is 0.03mm～0.07mm.
5. the tungsten-molybdenum-niobium electrode of the ceramic gold-halogen lamp of a kind of double laser beam welding according to claim 1 is characterized in that, described tungsten bar, molybdenum rod and niobium bar adopt the direct butt welding of double laser beam to be assembled into electrode assemblie.
6. a kind of according to claim 1 or 5 tungsten-molybdenum-niobium electrode of ceramic gold-halogen lamp of double laser beam welding is characterized in that, the node size and the controllable shapes of welding on the described electrode, and the interstice coverage of the node of molybdenum spiral and the welding of molybdenum niobium is 0mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041783A CN101651079A (en) | 2008-08-15 | 2008-08-15 | Dual-laser-beam welded tungsten-molybdenum-niobium electrode of ceramic metal halide lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041783A CN101651079A (en) | 2008-08-15 | 2008-08-15 | Dual-laser-beam welded tungsten-molybdenum-niobium electrode of ceramic metal halide lamp |
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| Publication Number | Publication Date |
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| CN101651079A true CN101651079A (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810041783A Pending CN101651079A (en) | 2008-08-15 | 2008-08-15 | Dual-laser-beam welded tungsten-molybdenum-niobium electrode of ceramic metal halide lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183459A (en) * | 2013-05-28 | 2014-12-03 | 海洋王照明科技股份有限公司 | Ceramic halogen lamp electrode |
| CN104183458A (en) * | 2013-05-28 | 2014-12-03 | 海洋王照明科技股份有限公司 | Ceramic halogen lamp electrode and ceramic halogen lamp |
-
2008
- 2008-08-15 CN CN200810041783A patent/CN101651079A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183459A (en) * | 2013-05-28 | 2014-12-03 | 海洋王照明科技股份有限公司 | Ceramic halogen lamp electrode |
| CN104183458A (en) * | 2013-05-28 | 2014-12-03 | 海洋王照明科技股份有限公司 | Ceramic halogen lamp electrode and ceramic halogen lamp |
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Open date: 20100217 |